†[Eusauropoda] Upchurch 1995
   †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]
     †Macronaria Wilson & Sereno 1998
       †Titanosauriformes Salgado, Coria & Calvo 1997
         †Somphospondyli Wilson & Sereno 1998
           [plesion] Genus †Tastavinsaurus Canudo, Royo-Torres & Cuenca-Bescós, 2008
             1 †Tastavinsaurus sanzi Canudo, Royo-Torres & Cuenca-Bescós, 2008